Emergency responders were called to the home in the 1000 block of Old Eagle Way around 8:30 a.m. Sunday. They found 16-year-old Samuel Xavier Motsay, a Center Grove High School student, dead.

Sheriff Doug Cox said Monday that a substance was found next to Motsay’s body. A sample has been sent to the Indiana State Police Lab for analysis. Cox said it would be some time before investigators received the results.

An autopsy for Motsay was scheduled for Monday. Cox said the autopsy would be complete soon.